I am amazed I can't find a Mudcat thread on "The Wheels on the Bus". In the light of this story....

https://www.theguardian.com/politics/2019/may/22/nigel-farage-shelters-on-campaign-bus-to-avoid-milkshake-attack

...I thought there ought to be a couple more verses like

The milkshakes round the bus go splat, splat, splat...

The Nigel on the bus goes duck, duck, duck....